The New York Giants want in on this Seattle Seahawks cornerback thing. They have signed Seahawks corner Walter Thurmond, who helped form the league's best secondaries this season en route to a Super Bowl title. Thurmond took visits to the San Francisco 49ers, Jacksonville Jaguars and Washington Redskins, indicating he was looking for a bigger role elsewhere. [Be sure to check out Shutdown Corner's NFL free-agent rankings. Click here for the list of offensive players , and click here for the list of defensive and special teams players ] He'll find that with the Giants, who also have bolstered their secondary with the signing of safety Quintin Demps, whose biggest role might be as a kick returner. The Giants might not be done, either. They still will meet with free-agent corner Dominique Rodgers-Cromartie. DRC is taking a New York, New York double dip, having already met with the crosstown Jets for a visit. If the Giants were to sign Rodgers-Cromartie, they'd suddenly turn a dearth into serious depth at corner, with Prince Amukamara and Trumaine McBride also in the fold. They have allowed Terrell Thomas, who gamely played 16 games a year ago following two lost seasons to ACL injuries, shop himself around in free agency. Aaron Ross also is unsigned and will not be back by all indications.   - - - - - - - Eric Edholm is a writer for Shutdown Corner on Yahoo Sports. Have a tip? Email him at edholm@yahoo-inc.com or follow him on Twitter! Follow @Eric_Edholm

The Seattle Seahawks re-signed defensive end Michael Bennett to a four-year contract on Monday. "I don't think there's any better situation, no matter how much money is involved," Bennett said. Bennett was an afterthought in 2013 free agency but became vital to the Seahawks' Super Bowl-winning defense. Bennett's brother, Martellus, plays tight end for the Chicago Bears, who were making a strong play for the defensive end.

By Simon Evans (Reuters) - The Seattle Seahawks extended their winning start to the season to a franchise record four games after a 23-20 comeback victory in overtime at the Houston Texans on Sunday while the New York Giants suffered a fourth straight loss with a miserable 31-7 defeat at Kansas City. The defending Super Bowl champions, the Baltimore Ravens also had a tough day with quarterback Joe Flacco throwing five interceptions in a 23-20 loss at Buffalo. ...

By Simon Evans Sept 29 (Reuters) - The Seattle Seahawks extended their winning start to the season to a franchise record four games after a 23-20 comeback victory in overtime at the Houston Texans on Sunday while the New York Giants suffered a fourth straight loss with a miserable 31-7 defeat at Kansas City. The defending Super Bowl champions, the Baltimore Ravens also had a tough day with quarterback Joe Flacco throwing five interceptions in a 23-20 loss at Buffalo. ...

Interceptions played a big role during Sunday's slate of NFL action. If it wasn't Baltimore's Joe Flacco throwing five or Chicago's Jay Cutler throwing three, it was Arizona's Patrick Peterson and Seattle's Richard Sherman steering their teams toward victory with picks at crucial points of the game. Then there was the pair of flat-out entertaining interceptions that the New York Giants and Seattle Seahawks came up with after unbelievable deflections. First, check out the unbelievable interception that somehow ended up in the arms of Antrel Rolle. Shutdown Corner's own Anwar Richardson called it an "early play of the year" candidate" and it's hard to disagree given that the ball somehow went off Jamaal Charles' foot before caroming its way between Rolle and teammate Mark Herzlich. Then there was Seattle's first-half interception of Houston quarterback Matt Schaub, which touched four Seahawks defenders before landing in the arms of Earl Thomas . Seriously, it was a play that'd make most college volleyball teams awfully proud. So, which one did you like better? Rolle's physics-defying interception? Or Seattle's ballhawking, tip-drill teamwork? - - - Hit us up on Twitter @YShutdownCorner , email us at shutdown.corner@yahoo.com and "Like" Shutdown Corner on Facebook for NFL conversation 365 days a year, the way it should be.

These are the biggest early storylines as we look ahead to Week 4, ranked in order of significance: 1. Ok, so everyone had the New Orleans Saints-Miami Dolphins on Monday Night Football as the biggest game of Week 4, right? Of course. Sure, the networks will play up the Ryan Tannehill - Drew Brees battle because quarterbacks are sexy. And nothing against those guys. But a moment for the defenses, shall we? The Saints (38) and Dolphins (53) have allowed a combined 91 points, which is fewer than four teams have given up all by themselves. You know Rob Ryan , the Saints’ defensive coordinator. But — and don’t cheat — can you name the Dolphins’ DC? It’s Kevin Coyle , who has these boys flying around. One worry, though: Dolphins defensive end Cameron Wake ’s knee is a balky, and he could well miss this game. 2. Naturally, the second-most important game of the weekend is Chicago Bears-Detroit Lions at Ford Field. Both teams passed big tests in Week 3 — Bears winning on the road in a tough place in Pittsburgh, and Lions winning where they never have before (in Washington/Maryland), and without Reggie Bush . His status will be closely watched all week. But we must mention that one reason these teams are atop the NFC North is because of the offensive lines. The Bears and Lions have given up the fewest sacks in the NFL to date. Go figure. [Yahoo Sports Fantasy Football: Don't wait, sign up today! ] 3. The Seattle Seahawks are making a case for being the most impressive team in football, and the Houston Texans are a confounding 2-1, hitting a crossroads following a throttling at the hands of the Ravens. The biggest question for the Texans is likely with Matt Schaub . Can he step up? Against this defense? At least the game is in Houston. They can make a big statement by beating the Seahawks. Or they'll be subject to more questioning if they lose. These are the two stingiest defenses in terms of yards allowed. We might be looking at 17-13, or the like, here.

COMMENTARY | In one of the more surprising and shocking trades of recent memory, the Indianapolis Colts made a blockbuster trade by acquiring Cleveland Browns running back Trent Richardson, the No. 3 overall pick in last year's draft, for a 2014 first-round draft pick. The Colts acquired him just days before their Week 3 matchup against the San Francisco 49ers, a team facing an early season turning point game after their blowout loss to the Seattle Seahawks last week. ...

After some consideration, I couldn't bring myself to move Denver ahead of Seattle for the top spot in this week's power rankings. The Broncos have played well, but how can you deny the Seahawks the top spot after what they did to the 49ers on Sunday night? Many people freaked out about the Seahawks after they beat Carolina in Week 1, but it's tough to travel three time zones and win a NFL road game. Then they absolutely proved their worth by dismantling the 49ers 29-3 on Sunday night. That Seattle defense is nasty. The Seahawks are the best team in football right now. But the Broncos aren't far behind. Denver has dominated each of the last two Super Bowl champs, Baltimore and the Giants, the past two weeks. The Broncos look strong in all phases. Potentially losing left tackle Ryan Clady to a foot injury for a chunk of the season (maybe all of it) is a big blow, but right now this is clearly the class of the AFC. Seattle will have to continue to play at a very high level, as it did on Sunday night, to keep holding off the Broncos for that top spot.

The New York Giants were awarded linebacker Allen Bradford off waivers from the Seattle Seahawks on Thursday.

Here is a close look at the Seattle Seahawks as they head into their season opener against the Carolina Panthers Sunday, 1 p.m. ET.